Abstract
Bed material load has been analyzed under its classification into bed load and suspended load. But several problems arised associated with such a framework of analysis. In the present paper, the transportation process of Bed material load is studied thriugh a unified simulation model which is constructed as an extension of original saltation model. As a result of this analysis, the influence of turbulent velocity fluctuation on the moving trajectory, a concetration distribution and a moving velocity distribution of sediment are all made clear. It's a first attempt to seek a unified theory of Bed material load in the literature.
